<template>
    <div>
        <!-- 面包屑导航 -->
        <el-breadcrumb separator-class="el-icon-arrow-right">
            <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
            <el-breadcrumb-item>用户管理</el-breadcrumb-item>
            <el-breadcrumb-item>权限管理</el-breadcrumb-item>
            <el-breadcrumb-item>权限管理列表</el-breadcrumb-item>
        </el-breadcrumb>
        <!-- 卡片视图 -->
        <el-card>
            <el-row :gutter="20"><!-- gutter是指定每个分栏的间隔 -->
                <!-- 分栏一共占24格，给搜索框7格，添加按钮4格 -->
                <el-col :span="7">
                    <!-- 搜索与添加区域 -->
                    <div style="display: flex; align-items: center;">
                      <el-input placeholder="请输入内容" clearable @clear="getUsers()" v-model="queryInfo.query"></el-input>
                      <el-button type="primary" size="mini" @click="getUsers()"><el-icon><Search /></el-icon></el-button>
                    </div>
                </el-col>
                <el-col :span="4">
                    <el-button type="primary" @click="addDialogVisible = true">添加用户</el-button>
                </el-col>
            </el-row>
            <el-table v-loading="loading" :data="users" border stripe ><!-- 带边框、斑马纹 -->
                <el-table-column type="index"></el-table-column>
                <el-table-column label="姓名" prop="username"></el-table-column>
                <el-table-column label="邮箱" prop="email"></el-table-column>
                <el-table-column label="电话" prop="phonenumber"></el-table-column>
                <el-table-column label="角色" prop="permission"></el-table-column>
                <el-table-column label="登录状态" prop="login">
                    <template #default="scope">
                        <el-switch v-model="scope.row.login"
                        active-color="#13ce66"
                        inactive-color="#ff4949" @change="userStateChange(scope.row)">
                        </el-switch>
                    </template>
                </el-table-column>
                <el-table-column label="操作" width="200px">
                    <template #default="scope">
                        <!-- 放置修改、删除和分配角色按钮 -->
                        <el-tooltip effect="dark" content="修改" placement="top">
                        <el-button type="primary"  size="mini" @click="showEditDialog(scope.row.cardid)"><el-icon><Edit /></el-icon></el-button>
                        </el-tooltip>
                        <el-tooltip effect="dark" content="删除" placement="top">
                        <el-button type="danger"  size="mini" @click="removeUserById(scope.row.cardid)"><el-icon><Delete /></el-icon></el-button>
                        </el-tooltip>
                        <el-tooltip effect="dark" content="分配角色" placement="top">
                        <el-button type="warning"  size="mini" @click="setRole(scope.row)"><el-icon><Setting /></el-icon></el-button>
                        </el-tooltip>
                    </template>
                </el-table-column>
            </el-table>
          <!-- 分页区域 -->
          <el-pagination @size-change="handleSizeChange" @current-change="handleCurrentChange"
            :current-page="queryInfo.pagenum" :page-sizes="[1, 2, 5, 10]" :page-size="queryInfo.pagesize"
            layout="total, sizes, prev, pager, next, jumper" :total="total">
          </el-pagination>
          <!-- 添加用户的对话框 -->
            <el-dialog title="添加用户" v-model="addDialogVisible" width="20%" @close="addDialogClosed">
            <!-- 内容主体区 -->
            <el-form :model="addUserForm" :rules="addUserFormRules" ref="addUserFormRef" label-width="70px">
              <el-form-item label="用户名" prop="username"> <!-- prop是验证规则属性 -->
                <el-input v-model="addUserForm.username"></el-input>
              </el-form-item>
              <el-form-item label="密码" prop="password">
                <el-input v-model="addUserForm.password" type="password"></el-input>
              </el-form-item>
              <el-form-item label="编号" prop="cardid">
                <el-input v-model="addUserForm.cardid"></el-input>
              </el-form-item>
              <el-form-item label="邮箱" prop="email">
                <el-input v-model="addUserForm.email"></el-input>
              </el-form-item>
              <el-form-item label="手机" prop="mobile">
                <el-input v-model="addUserForm.mobile"></el-input>
              </el-form-item>
            </el-form>
            <!-- 底部区 -->
              <template #footer>
                <span class="dialog-footer">
                  <el-button @click="addDialogVisible = false">取 消</el-button>
                  <el-button type="primary" @click="addUser()">确 定</el-button>
                </span>
              </template>
          </el-dialog>
          <!-- 修改用户的对话框 -->
          <el-dialog title="修改用户" v-model="editDialogVisible" width="20%" @close="editDialogClosed"
          :close-on-click-modal='false'>
            <!-- 内容主体区 -->
            <el-form :model="editUserForm" :rules="editUserFormRules" ref="editUserFormRef" label-width="70px">
              <el-form-item label="用户名" prop="username">
                <el-input v-model="editUserForm.username" disabled></el-input>
              </el-form-item>
              <el-form-item label="编号" prop="cardid">
                <el-input v-model="editUserForm.cardid" disabled></el-input>
              </el-form-item>
              <el-form-item label="邮箱" prop="email">
                <el-input v-model="editUserForm.email"></el-input>
              </el-form-item>
              <el-form-item label="手机" prop="mobile">
                <el-input v-model="editUserForm.phonenumber"></el-input>
              </el-form-item>
            </el-form>
            <!-- 底部区 -->
              <template #footer>
                <span class="dialog-footer">
                  <el-button @click="editDialogVisible = false">取 消</el-button>
                  <el-button type="primary" @click="editUser()">确 定</el-button>
                </span>
              </template>
          </el-dialog>
          <!-- 分配角色的对话框 -->
          <el-dialog title="分配角色" v-model="setRoleDialogVisible" width="20%">
              <div style="margin-bottom: 20px;">
              <p>当前的用户：{{userInfo.username}}</p>
                </div>
              <div style="margin-bottom: 20px;">
              <p>当前的角色：{{userInfo.permission}}</p>
                </div>
              <div style="margin-bottom: 20px;">
              <p>
                分配新角色：
                <el-select v-model="selectRoleId" placeholder="请选择">
                    <el-option v-for="item in roleList" :key="item.role"
                        :label="item.role" :value="item.role">
                    </el-option>
                </el-select>
              </p>
                </div>
            <template #footer>
                <span class="dialog-footer">
                    <el-button @click="setRoleDialogVisible = false" @click.prevent="this.selectRoleId = ''">取 消</el-button>
                    <el-button type="primary" @click="saveRoleInfo(userInfo.cardid)">确 定</el-button>
                </span>
              </template>
          </el-dialog>
        </el-card>
    </div>
</template>
<script>
import { defineComponent } from 'vue'
import { Delete, Edit, Search, Setting } from '@element-plus/icons-vue'
import {
  ElTable,
  ElTableColumn,
  ElButton,
  ElInput,
  ElDialog,
  ElForm,
  ElFormItem,
  ElMessage,
  ElMessageBox
} from 'element-plus'
export default defineComponent({
  data() {
    const checkEmail = (rule, value, callback) => {
      //验证邮箱的正则表达式
      const regEmail = /^([a-zA-Z]|[0-9])(\w|-)+@[a-zA-Z0-9]+\.([a-zA-Z]{2,4})$/;
      if (regEmail.test(value)) {
        return callback(); //合法邮箱
      }
      return callback(new Error("请输入合法的邮箱"));
    };
    const checkMobile = (rule, value, callback) => {
      //验证手机号的正则表达式
      const regMobile = /^(13[0-9]|14[01456879]|15[0-35-9]|16[2567]|17[0-8]|18[0-9]|19[0-35-9])\d{8}$/;
      if (regMobile.test(value)) {
        return callback(); //合法手机号
      }
      return callback(new Error("请输入合法的手机号"));
    };
    return {
      loading:false,
      users: [],
      setRoleDialogVisible: false, //控制用户分配角色对话框的显示与隐藏
      //需要被分配角色的用户信息
      userInfo: [],
      //所有角色的数据列表
      roleList: [],
      //已选中的角色ID值
      selectRoleId: '',
      //获取用户列表的参数对象
      queryInfo: {
        query: "",
        pagenum: 1, //当前的页数
        pagesize: 13, //每页的数量
      },
      total: 0,
      addDialogVisible: false, //控制添加用户对话框的显示与隐藏
      editDialogVisible: false, //控制修改用户对话框的显示与隐藏
      //添加用户的表单数据
      addUserForm: {},
      //修改用户的表单数据
      editUserForm: {},
      //修改表单的验证规则对象
      editUserFormRules: {
        email: [{required: true, message: '请输入邮箱', trigger: 'blur'}, {validator: checkEmail, trigger: 'blur'}],
        mobile: [{required: true, message: '请输入手机号', trigger: 'blur'}, {validator: checkMobile, trigger: 'blur'}]
      },
      //添加表单的验证规则对象
      addUserFormRules: {
        username: [{required: true, message: '请输入用户名', trigger: 'blur'},
          {min: 3, max: 10, message: '用户名长度在3~10个字符', trigger: 'blur'}],
        password: [{required: true, message: '请输入密码', trigger: 'blur'},
          {min: 6, max: 15, message: '密码长度在6~15个字符', trigger: 'blur'}],
        email: [{required: true, message: '请输入邮箱', trigger: 'blur'}, {validator: checkEmail, trigger: 'blur'}],
        mobile: [{required: true, message: '请输入手机号', trigger: 'blur'}, {validator: checkMobile, trigger: 'blur'}],
        cardid: [{required: true, message: '请输入编号ID', trigger: 'blur'}]
      }
    };
  },
  components: {
    ElTable,
    ElTableColumn,
    ElButton,
    ElInput,
    ElDialog,
    ElForm,
    ElFormItem,
    Search,
    Edit,
    Delete,
    Setting
  },
  mounted () {
    this.getUsers()
  },
  methods: {
    // 获取所有用户
    async getUsers() {
      this.loading = true
      try {
        const response = await this.$http.post('/users/', this.queryInfo);
        this.loading = false
        if (response.status === 200) {
          this.users = response.data.results;
          this.total = response.data.total;
          ElMessage.success('更新用户列表成功！');
        } else {
          ElMessage.error('没有这个用户！');
        }
      } catch (error) {
        console.log(error);
        this.getUsers()
        // ElMessage.error('更新用户列表失败！');
      }
    },
    //监听 pagesize 改变的事件
    handleSizeChange(newSize){
      // console.log(newSize);
      this.queryInfo.pagesize = newSize;//重新指定每页数据量
      this.queryInfo.pagenum = 1;
      this.getUsers();//带着新的分页请求获取数据
    },
    //监听 页码值 改变的事件
    handleCurrentChange(newPage){
      // console.log(newPage);
      this.queryInfo.pagenum = newPage;//重新指定当前页
      this.getUsers();//带着新的分页请求获取数据
    },
    //监听switch开关状态的改变
    async userStateChange(userinfo) {
      try {
        const response = await this.$http.post('/editUserlogin/', {
          'cardid': userinfo.cardid,
        });
        if (response.status === 200) {
          ElMessage.success('更新用户状态成功！');
          // this.getUsers();
          console.log(response.data);
        }
      } catch (error) {
        console.log(error);
        ElMessage.error('更新用户状态失败！');
      }
    },
    //监听添加用户对话框的关闭状态
    addDialogClosed(){
      this.$refs.addUserFormRef.resetFields();
    },
    // 点击按钮，添加新用户
    async addUser(){
      await this.$refs.addUserFormRef.validate(async valid => {
        if (!valid) return;//校验没通过，返回
        try {
          const response = await this.$http.post("/usersadd/", this.addUserForm);
          console.log(response);
          this.addDialogVisible = false;
          ElMessage.success('添加用户成功！');
          this.getUsers();
        } catch (error) {
          console.log(error);
          ElMessage.error('添加用户失败！');
        }
      })
    },
    //关闭编辑用户的对话框
    editDialogClosed(){
      this.$refs.editUserFormRef.resetFields();
    },
    //展示编辑用户的对话框
    async showEditDialog(cardid) {
      try {
        const response = await this.$http.post('/showuserEdit/', {'cardid': cardid});
        this.editUserForm = response.data;
        this.editDialogVisible = true;
        ElMessage.success('打开成功！');
      } catch (error) {
        console.error(error);
        ElMessage.error('打开失败！');
      }
    },
    async editUser() {
      try {
        const response = await this.$http.post('/usersedit/', {
          cardid: this.editUserForm.cardid,
          email: this.editUserForm.email,
          phonenumber: this.editUserForm.phonenumber
        });
        console.log(response);
        ElMessage.success('修改用户成功！');
        // 隐藏修改用户的对话框
        this.editDialogVisible = false;
        //重新获取用户列表数据
        this.getUsers();
      } catch (error) {
        console.error(error);
        ElMessage.error('修改用户失败！');
      }
    },
    //根据ID删除对应用户信息
    async removeUserById(cardid){
      //弹框询问用户是否删除数据
      ElMessageBox.confirm('此操作将永久删除用户, 是否继续?', '提示', {
          confirmButtonText: '确定',
          cancelButtonText: '取消',
          type: 'warning'
        }).then(async () => {
        try {
          const data = {
            'cardid': cardid,
          }
          const response = await this.$http.post('/usersdel/', data);
          console.log(response);
          this.getUsers();
          ElMessage({type: 'success', message: '删除成功!'});
        } catch (error) {
          console.error(error)
          ElMessage.error({message: '删除失败！'});
        }
      }).catch(() => {
        ElMessage.info('已取消删除');
      })
    },
    //展示分配角色的对话框
    async setRole(user) {
      try {
        const response = await this.$http.post('/getrole/');
        this.roleList = response.data;
        this.userInfo = user;//获取用户信息展示在页面
        //显示对话框
        this.setRoleDialogVisible = true;
        //在展示对话框之前，加载所有的角色（待用户选择）
        ElMessage({type: 'success', message: '获取角色列表成功!'});
      } catch (error) {
        console.error(error)
        ElMessage({message: '获取角色列表失败！'});
      }
    },
    // 点击按钮分配角色
    async saveRoleInfo(cardid) {
      if (!this.selectRoleId) {
        return ElMessage.error('请选择要分配的角色！');
      }
      try {
        const response = await this.$http.post('/edituserrole/', {rid: this.selectRoleId, "cardid": cardid});
        console.log(response);
        ElMessage.success('更新角色成功！');
        this.getUsers();//刷新用户列表
        this.selectRoleId = '';//清空本次选择，避免影响下次
        this.setRoleDialogVisible = false;//关闭对话框
      } catch (error) {
        console.error(error)
        ElMessage.error({message: '更新角色失败！'});
      }
    },
  }
})
</script>

<style scoped>
.text {
  font-size: 14px;
}

.item {
  padding: 18px 0;
}
</style>